時過境遷

things change with the passage of time (idiom)

o'clock / time / when / hour / season / period

surname Guo

to cross / to go over / to pass (time) / to celebrate (a holiday) / to live / to get along / excessively / too-

(experienced action marker)

to pass through a country's territory / transit

border / place / condition / boundary / circumstances / territory

to move / to shift / to change (a position or location etc) / to promote